./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f3466b08a64c7fddf78a299dda71b27bda6ead813da06152b5ee1cea2f1c203 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:37:43,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:37:43,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:37:43,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:37:43,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:37:43,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:37:43,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:37:43,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:37:43,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:37:43,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:37:43,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:37:43,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:37:43,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:37:43,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:37:43,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:37:43,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:37:43,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:37:43,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:37:43,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:37:43,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:37:43,221 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:37:43,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:37:43,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:37:43,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:37:43,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:37:43,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:37:43,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:37:43,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:37:43,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:37:43,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:37:43,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:37:43,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:37:43,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:37:43,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:37:43,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:37:43,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:37:43,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:37:43,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:37:43,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:37:43,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:37:43,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:37:43,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:37:43,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:37:43,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:37:43,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:37:43,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:37:43,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:37:43,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:37:43,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:37:43,282 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:37:43,282 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:37:43,283 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:37:43,283 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:37:43,284 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:37:43,284 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:37:43,284 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:37:43,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:37:43,293 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:37:43,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:37:43,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:37:43,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:37:43,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:37:43,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:37:43,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:37:43,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:37:43,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:37:43,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:37:43,295 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:37:43,295 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:37:43,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:37:43,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:37:43,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:37:43,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:37:43,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:37:43,299 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:37:43,299 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f3466b08a64c7fddf78a299dda71b27bda6ead813da06152b5ee1cea2f1c203 [2022-07-22 02:37:43,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:37:43,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:37:43,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:37:43,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:37:43,645 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:37:43,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2022-07-22 02:37:43,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f99ef2c2/50fadd1b7893401797fac7d0319b45a4/FLAG740068694 [2022-07-22 02:37:44,207 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:37:44,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2022-07-22 02:37:44,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f99ef2c2/50fadd1b7893401797fac7d0319b45a4/FLAG740068694 [2022-07-22 02:37:44,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f99ef2c2/50fadd1b7893401797fac7d0319b45a4 [2022-07-22 02:37:44,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:37:44,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:37:44,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:37:44,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:37:44,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:37:44,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:37:44" (1/1) ... [2022-07-22 02:37:44,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eba84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:44, skipping insertion in model container [2022-07-22 02:37:44,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:37:44" (1/1) ... [2022-07-22 02:37:44,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:37:44,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:37:44,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20836,20849] [2022-07-22 02:37:44,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:37:44,964 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:37:45,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20836,20849] [2022-07-22 02:37:45,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:37:45,079 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:37:45,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45 WrapperNode [2022-07-22 02:37:45,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:37:45,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:37:45,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:37:45,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:37:45,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,216 INFO L137 Inliner]: procedures = 64, calls = 178, calls flagged for inlining = 75, calls inlined = 450, statements flattened = 2749 [2022-07-22 02:37:45,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:37:45,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:37:45,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:37:45,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:37:45,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:37:45,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:37:45,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:37:45,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:37:45,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (1/1) ... [2022-07-22 02:37:45,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:37:45,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:37:45,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:37:45,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 02:37:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:37:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:37:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:37:45,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:37:45,508 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:37:45,509 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:37:46,545 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:37:46,556 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:37:46,557 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 02:37:46,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:37:46 BoogieIcfgContainer [2022-07-22 02:37:46,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:37:46,560 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:37:46,560 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:37:46,563 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:37:46,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:37:46,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:37:44" (1/3) ... [2022-07-22 02:37:46,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50746e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:37:46, skipping insertion in model container [2022-07-22 02:37:46,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:37:46,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:37:45" (2/3) ... [2022-07-22 02:37:46,565 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50746e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:37:46, skipping insertion in model container [2022-07-22 02:37:46,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:37:46,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:37:46" (3/3) ... [2022-07-22 02:37:46,566 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_productSimulator.cil.c [2022-07-22 02:37:46,621 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:37:46,622 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:37:46,622 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:37:46,622 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:37:46,622 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:37:46,622 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:37:46,622 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:37:46,622 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:37:46,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 770 states, 769 states have (on average 1.3485045513654097) internal successors, (1037), 769 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:37:46,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 507 [2022-07-22 02:37:46,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:37:46,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:37:46,688 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:37:46,688 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:37:46,688 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:37:46,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 770 states, 769 states have (on average 1.3485045513654097) internal successors, (1037), 769 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:37:46,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 507 [2022-07-22 02:37:46,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:37:46,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:37:46,702 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:37:46,702 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:37:46,715 INFO L752 eck$LassoCheckResult]: Stem: 360#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(38, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 698#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 431#L1134true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;havoc select_features_#t~ret55#1, select_features_#t~ret56#1, select_features_#t~ret57#1, select_features_#t~ret58#1, select_features_#t~ret59#1, select_features_#t~ret60#1;~__SELECTED_FEATURE_base~0 := 1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 639#L1109true select_features_#t~ret55#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret55#1;havoc select_features_#t~ret55#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 389#L1109-1true select_features_#t~ret56#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret56#1;havoc select_features_#t~ret56#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 125#L1109-2true select_features_#t~ret57#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret57#1;havoc select_features_#t~ret57#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 587#L1109-3true select_features_#t~ret58#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret58#1;havoc select_features_#t~ret58#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 142#L1109-4true select_features_#t~ret59#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret59#1;havoc select_features_#t~ret59#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 33#L1109-5true select_features_#t~ret60#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret60#1;havoc select_features_#t~ret60#1; 157#L1126true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := ~__SELECTED_FEATURE_base~0;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 743#L1142true main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 704#L596true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 22#L567true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 624#L694true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 308#L620-2true [2022-07-22 02:37:46,716 INFO L754 eck$LassoCheckResult]: Loop: 308#L620-2true assume !false; 34#L621true assume test_~splverifierCounter~0#1 < 4; 741#L622true test_~tmp~7#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 246#L630true assume !(0 != test_~tmp~7#1); 23#L630-2true test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 574#L640true assume !(0 != test_~tmp___0~2#1); 575#L640-2true test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 164#L650true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 105#L662true assume !(0 != test_~tmp___1~0#1); 338#L662-1true assume { :begin_inline_timeShift } true; 247#L184true assume !(0 != ~pumpRunning~0); 144#L184-2true assume !(0 != ~systemActive~0); 449#L191-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_#t~ret30#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 481#L109-10true __utac_acc__Specification2_spec__2_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret29#1;havoc __utac_acc__Specification2_spec__2_#t~ret29#1; 170#L705true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 226#L705-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 128#L201true assume { :end_inline_timeShift } true; 308#L620-2true [2022-07-22 02:37:46,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:37:46,721 INFO L85 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 1 times [2022-07-22 02:37:46,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:37:46,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130360488] [2022-07-22 02:37:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:37:46,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:37:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:46,872 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:37:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:46,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:37:46,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:37:46,961 INFO L85 PathProgramCache]: Analyzing trace with hash -199906935, now seen corresponding path program 1 times [2022-07-22 02:37:46,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:37:46,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145605372] [2022-07-22 02:37:46,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:37:46,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:37:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:46,974 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:37:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:46,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:37:46,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:37:46,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1885939910, now seen corresponding path program 1 times [2022-07-22 02:37:46,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:37:46,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063836984] [2022-07-22 02:37:46,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:37:46,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:37:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:37:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:37:47,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:37:47,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063836984] [2022-07-22 02:37:47,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063836984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:37:47,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:37:47,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 02:37:47,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847117000] [2022-07-22 02:37:47,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:37:47,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:37:47,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 02:37:47,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 02:37:47,345 INFO L87 Difference]: Start difference. First operand has 770 states, 769 states have (on average 1.3485045513654097) internal successors, (1037), 769 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:37:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:37:47,592 INFO L93 Difference]: Finished difference Result 2340 states and 3133 transitions. [2022-07-22 02:37:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 02:37:47,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2340 states and 3133 transitions. [2022-07-22 02:37:47,624 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1550 [2022-07-22 02:37:47,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2340 states to 2300 states and 3093 transitions. [2022-07-22 02:37:47,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2300 [2022-07-22 02:37:47,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2300 [2022-07-22 02:37:47,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2300 states and 3093 transitions. [2022-07-22 02:37:47,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:37:47,658 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2300 states and 3093 transitions. [2022-07-22 02:37:47,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states and 3093 transitions. [2022-07-22 02:37:47,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 814. [2022-07-22 02:37:47,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 814 states have (on average 1.343980343980344) internal successors, (1094), 813 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:37:47,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1094 transitions. [2022-07-22 02:37:47,770 INFO L392 hiAutomatonCegarLoop]: Abstraction has 814 states and 1094 transitions. [2022-07-22 02:37:47,771 INFO L374 stractBuchiCegarLoop]: Abstraction has 814 states and 1094 transitions. [2022-07-22 02:37:47,771 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:37:47,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 814 states and 1094 transitions. [2022-07-22 02:37:47,780 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 547 [2022-07-22 02:37:47,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:37:47,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:37:47,782 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:37:47,782 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:37:47,782 INFO L752 eck$LassoCheckResult]: Stem: 3888#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(38, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 3872#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 3360#L1134 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;havoc select_features_#t~ret55#1, select_features_#t~ret56#1, select_features_#t~ret57#1, select_features_#t~ret58#1, select_features_#t~ret59#1, select_features_#t~ret60#1;~__SELECTED_FEATURE_base~0 := 1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3361#L1109 select_features_#t~ret55#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret55#1;havoc select_features_#t~ret55#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3211#L1109-1 select_features_#t~ret56#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret56#1;havoc select_features_#t~ret56#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3212#L1109-2 select_features_#t~ret57#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret57#1;havoc select_features_#t~ret57#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3576#L1109-3 select_features_#t~ret58#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret58#1;havoc select_features_#t~ret58#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3606#L1109-4 select_features_#t~ret59#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret59#1;havoc select_features_#t~ret59#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3299#L1109-5 select_features_#t~ret60#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret60#1;havoc select_features_#t~ret60#1; 3300#L1126 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := ~__SELECTED_FEATURE_base~0;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3631#L1142 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 3875#L596 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3259#L567 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3260#L694 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3580#L620-2 [2022-07-22 02:37:47,783 INFO L754 eck$LassoCheckResult]: Loop: 3580#L620-2 assume !false; 3301#L621 assume test_~splverifierCounter~0#1 < 4; 3302#L622 test_~tmp~7#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 3800#L630 assume !(0 != test_~tmp~7#1); 3214#L630-2 test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 3261#L640 assume !(0 != test_~tmp___0~2#1); 3497#L640-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3645#L650 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3537#L662 assume !(0 != test_~tmp___1~0#1); 3183#L662-1 assume { :begin_inline_timeShift } true; 3802#L184 assume !(0 != ~pumpRunning~0); 3608#L184-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 3609#L327 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0);assume { :begin_inline_processEnvironment__before__methaneAlarm } true; 3499#L284-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0);assume { :begin_inline_processEnvironment__before__lowWaterSensor } true; 3500#L241-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0);assume { :begin_inline_processEnvironment__before__highWaterSensor } true; 3818#L208-26 assume { :end_inline_processEnvironment__before__highWaterSensor } true; 3452#L250-8 assume { :end_inline_processEnvironment__before__lowWaterSensor } true; 3453#L293-2 assume { :end_inline_processEnvironment__before__methaneAlarm } true; 3470#L336 assume { :end_inline_processEnvironment } true; 3424#L191-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_#t~ret30#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3425#L109-10 __utac_acc__Specification2_spec__2_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret29#1;havoc __utac_acc__Specification2_spec__2_#t~ret29#1; 3492#L705 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 3332#L705-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3579#L201 assume { :end_inline_timeShift } true; 3580#L620-2 [2022-07-22 02:37:47,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:37:47,787 INFO L85 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 2 times [2022-07-22 02:37:47,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:37:47,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608794803] [2022-07-22 02:37:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:37:47,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:37:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:47,800 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:37:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:47,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:37:47,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:37:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash 880051575, now seen corresponding path program 1 times [2022-07-22 02:37:47,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:37:47,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323691750] [2022-07-22 02:37:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:37:47,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:37:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:47,821 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:37:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:47,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:37:47,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:37:47,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1030143654, now seen corresponding path program 1 times [2022-07-22 02:37:47,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:37:47,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255260841] [2022-07-22 02:37:47,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:37:47,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:37:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:47,849 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:37:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:37:47,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:37:51,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:37:51 BoogieIcfgContainer [2022-07-22 02:37:51,354 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:37:51,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:37:51,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:37:51,355 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:37:51,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:37:46" (3/4) ... [2022-07-22 02:37:51,358 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 02:37:51,417 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 02:37:51,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:37:51,418 INFO L158 Benchmark]: Toolchain (without parser) took 6857.32ms. Allocated memory was 52.4MB in the beginning and 130.0MB in the end (delta: 77.6MB). Free memory was 28.5MB in the beginning and 40.2MB in the end (delta: -11.7MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2022-07-22 02:37:51,418 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory is still 34.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:37:51,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.85ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 28.2MB in the beginning and 41.3MB in the end (delta: -13.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-07-22 02:37:51,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.87ms. Allocated memory is still 67.1MB. Free memory was 41.3MB in the beginning and 44.6MB in the end (delta: -3.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2022-07-22 02:37:51,419 INFO L158 Benchmark]: Boogie Preprocessor took 105.93ms. Allocated memory is still 67.1MB. Free memory was 44.4MB in the beginning and 37.8MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 02:37:51,419 INFO L158 Benchmark]: RCFGBuilder took 1234.50ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 37.8MB in the beginning and 52.6MB in the end (delta: -14.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-07-22 02:37:51,420 INFO L158 Benchmark]: BuchiAutomizer took 4793.82ms. Allocated memory was 83.9MB in the beginning and 130.0MB in the end (delta: 46.1MB). Free memory was 52.6MB in the beginning and 43.3MB in the end (delta: 9.3MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2022-07-22 02:37:51,420 INFO L158 Benchmark]: Witness Printer took 62.65ms. Allocated memory is still 130.0MB. Free memory was 43.3MB in the beginning and 40.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:37:51,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory is still 34.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.85ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 28.2MB in the beginning and 41.3MB in the end (delta: -13.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.87ms. Allocated memory is still 67.1MB. Free memory was 41.3MB in the beginning and 44.6MB in the end (delta: -3.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.93ms. Allocated memory is still 67.1MB. Free memory was 44.4MB in the beginning and 37.8MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1234.50ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 37.8MB in the beginning and 52.6MB in the end (delta: -14.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4793.82ms. Allocated memory was 83.9MB in the beginning and 130.0MB in the end (delta: 46.1MB). Free memory was 52.6MB in the beginning and 43.3MB in the end (delta: 9.3MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. * Witness Printer took 62.65ms. Allocated memory is still 130.0MB. Free memory was 43.3MB in the beginning and 40.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 814 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 1486 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7055 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7055 mSDsluCounter, 8398 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7367 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 1031 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 620]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, __SELECTED_FEATURE_base=1, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eeabd97=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61be7609=0, methaneLevelCritical=0, tmp=0, retValue_acc=0, retValue_acc=0, __GUIDSL_ROOT_PRODUCTION=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26d2483e=0, tmp___2=0, cleanupTimeShifts=4, choice=29, \result=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69178ce4=0, __SELECTED_FEATURE_methaneAlarm=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@147939b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@209b11=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@583e8add=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18e4060f=0, __SELECTED_FEATURE_lowWaterSensor=0, head=0, pumpRunning=0, __SELECTED_FEATURE_highWaterSensor=0, retValue_acc=1, \result=0, \result=1, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_stopCommand=0, methAndRunningLastTime=0, tmp=1, \result=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6469450e=0, head=0, __SELECTED_FEATURE_startCommand=29, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c3f3378=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71de822a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33e66fd8=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f373e2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@742d5268=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 620]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int __SELECTED_FEATURE_base ; [L51] int __SELECTED_FEATURE_highWaterSensor ; [L52] int __SELECTED_FEATURE_lowWaterSensor ; [L53] int __SELECTED_FEATURE_methaneQuery ; [L54] int __SELECTED_FEATURE_methaneAlarm ; [L55] int __SELECTED_FEATURE_stopCommand ; [L56] int __SELECTED_FEATURE_startCommand ; [L57] int __GUIDSL_ROOT_PRODUCTION ; [L66] int waterLevel = 1; [L67] int methaneLevelCritical = 0; [L176] int pumpRunning = 0; [L177] int systemActive = 1; [L508] int cleanupTimeShifts = 4; [L688] int methAndRunningLastTime ; [L896] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int retValue_acc ; [L588] int tmp ; [L592] CALL select_helpers() [L1133] __GUIDSL_ROOT_PRODUCTION = 1 [L592] RET select_helpers() [L593] CALL select_features() [L1118] __SELECTED_FEATURE_base = 1 [L1119] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1119] RET, EXPR select_one() [L1119] __SELECTED_FEATURE_highWaterSensor = select_one() [L1120] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1120] RET, EXPR select_one() [L1120] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1121] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1121] RET, EXPR select_one() [L1121] __SELECTED_FEATURE_methaneQuery = select_one() [L1122] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1122] RET, EXPR select_one() [L1122] __SELECTED_FEATURE_methaneAlarm = select_one() [L1123] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1123] RET, EXPR select_one() [L1123] __SELECTED_FEATURE_stopCommand = select_one() [L1124] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1124] RET, EXPR select_one() [L1124] __SELECTED_FEATURE_startCommand = select_one() [L593] RET select_features() [L594] CALL, EXPR valid_product() [L1138] int retValue_acc ; [L1141] retValue_acc = __SELECTED_FEATURE_base [L1142] return (retValue_acc); [L594] RET, EXPR valid_product() [L594] tmp = valid_product() [L596] COND TRUE \read(tmp) [L598] FCALL setup() [L599] CALL runTest() [L577] CALL __utac_acc__Specification2_spec__1() [L693] methAndRunningLastTime = 0 [L577] RET __utac_acc__Specification2_spec__1() [L578] CALL test() [L611] int splverifierCounter ; [L612] int tmp ; [L613] int tmp___0 ; [L614] int tmp___1 ; [L615] int tmp___2 ; [L618] splverifierCounter = 0 Loop: [L620] COND TRUE 1 [L622] COND TRUE splverifierCounter < 4 [L628] tmp = __VERIFIER_nondet_int() [L630] COND FALSE !(\read(tmp)) [L638] tmp___0 = __VERIFIER_nondet_int() [L640] COND FALSE !(\read(tmp___0)) [L648] tmp___2 = __VERIFIER_nondet_int() [L650] COND FALSE !(\read(tmp___2)) [L660] tmp___1 = __VERIFIER_nondet_int() [L662] COND FALSE !(\read(tmp___1)) [L675] CALL timeShift() [L184] COND FALSE !(\read(pumpRunning)) [L191] COND TRUE \read(systemActive) [L193] CALL processEnvironment() [L327] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L334] CALL processEnvironment__before__methaneAlarm() [L284] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L291] CALL processEnvironment__before__lowWaterSensor() [L241] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L248] FCALL processEnvironment__before__highWaterSensor() [L291] RET processEnvironment__before__lowWaterSensor() [L334] RET processEnvironment__before__methaneAlarm() [L193] RET processEnvironment() [L199] CALL __utac_acc__Specification2_spec__2() [L698] int tmp ; [L699] int tmp___0 ; [L703] CALL, EXPR isMethaneLevelCritical() [L105] int retValue_acc ; [L108] retValue_acc = methaneLevelCritical [L109] return (retValue_acc); [L703] RET, EXPR isMethaneLevelCritical() [L703] tmp = isMethaneLevelCritical() [L705] COND FALSE !(\read(tmp)) [L721] methAndRunningLastTime = 0 [L199] RET __utac_acc__Specification2_spec__2() [L675] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 02:37:51,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)